PIC24FJ512GL406-I/MR - 16-bit 512KB Flash USB/LCD MCU | Microchip
MPN: PIC24FJ512GL406-I/MR ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.65 | $76.50 |
| 100 | $6.85 | $685.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.45 | $5,450.00 |
PIC24FJ512GL406-I/MR Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and a rich set of peripheral interfaces (UART, SPI, I2C, USB, ADC, timers, LCD drivers). The 16-bit PIC24F architecture sits in Microchip's product hierarchy above PIC16 (8-bit) and below the 32-bit PIC32MX/dsPIC33 families, offering higher code density and arithmetic throughput than 8-bit cores while retaining the deterministic interrupt behaviour of PIC microcontrollers. eXtreme Low-Power (XLP) variants extend battery life into the multi-year range through deep sleep currents measured in nanoamps and multiple power-saving modes.
Key features include Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Multiple Output Capture/Compare/PWM (SCCP/MCCP), and a 12-bit 200 ksps ADC. The 8-bit PMP bus supports graphics and external memory expansion, while the integrated segmented LCD driver can directly drive up to 512 segments without external charge-pump circuitry. Hardware crypto (AES, DES, SHA) and a true random-number generator (SIP) provide secure connectivity for IoT endpoints.
Typical applications span battery-powered IoT sensors with USB-C charging, secure medical wearables that demand long battery life, industrial HMI panels with integrated LCD, and home-automation bridges requiring OTA firmware updates. The 512 KB dual-partition Flash enables fail-safe bootloader implementations where one bank always remains bootable while the other is being reflashed.
Designers should plan for a 2.5 V-3.6 V VDD core supply with a separate AVDD/AVSS pair for the ADC, route the 32 MHz crystal traces symmetrically with short return paths, and consult the family's AN now Flash programming application note for OTA dual-bank sequencing. Compared with discrete 8-bit MCUs plus external LCD/USB bridges, this part reduces BOM count, PCB area, and quiescent current by an order of magnitude.
Drop-in alternatives for PIC24FJ512GL406-I/MR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24FJ512GL406-I/MR (same form factor and footprint) — differing in Operating Temperature, Package, ADC, USB, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ512GU406-I/MR
✅ Drop-In✓ In Stock
$4.88 / Unit
View Datasheet →PIC24FJ512GB406-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ256GU406T-I/MR
✅ Drop-In✓ In Stock
$4.78 / Unit
View Datasheet →PIC24FJ256GL406-I/MR
✅ Drop-In✓ In Stock
$3.65 / Unit
View Datasheet →PIC24FJ128GL406-I/MR
✅ Drop-In✓ In Stock
$4.05 / Unit
View Datasheet →PIC24FJ128GB406-I/MR
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →PIC24FJ512GL406-I/MR Maximum Ratings & Electrical Characteristics
| Series | PIC® 24F |
| Core | PIC24F 16-bit RISC |
| Core Size | 16-bit |
| Maximum CPU Frequency | 32 MHz (16 MIPS) |
| Program Memory | 512 KB Flash (Dual Partition) |
| RAM | 32 KB |
| EEPROM Emulation | Yes (in Flash) |
| USB | USB 2.0 Full-Speed (Host/Device/OTG) |
| LCD Controller | Segment LCD, up to 512 segments |
| ADC | 12-bit, up to 200 ksps |
| Operating Voltage (VDD) | 2.5 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 64-QFN (MR) 9x9 mm |
| Pin Count | 64 |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
PIC24FJ512GL406-I/MR 64-qfn (mr) 9x9 mm Pin Configuration Guide
Pin configuration for PIC24FJ512GL406-I/MR (64-qfn (mr) 9x9 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC24FJ512GL406-I/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC24FJ512GL406-I/MR is suitable for 6 applications: Battery-Powered IoT Sensor with USB, Medical Wearable with Segment LCD, Industrial HMI with Display, Smart Home Bridge / Hub, Portable Data Logger, USB Barcode / RFID Reader.
Battery-Powered IoT Sensor with USB
The PIC24FJ512GL406-I/MR is ideal for battery-powered IoT sensor nodes that need USB-C charging plus OTA firmware updates. Its 512 KB dual-partition Flash lets one bank hold a verified bootloader while the other is being reflashed, eliminating external EEPROM and providing fail-safe updates over USB or wireless backhaul. The on-chip USB 2.0 Full-Speed OTG removes the need for an external PHY, while the XLP deep-sleep currents in the nanoamp range extend coin-cell life into the multi-year range, suiting smart-home, asset-tracking, and industrial-sensor deployments.
Recommended
Medical Wearable with Segment LCD
Medical wearables such as glucose meters, pulse oximeters, and portable ECGs benefit from the PIC24FJ512GL406-I/MR's integrated segment-LCD driver (up to 512 segments) and XLP power profile. The on-chip LCD bias generation eliminates external charge-pump ICs and capacitors, reducing BOM and PCB area. With 32 KB SRAM, the MCU can buffer large sensor streams while the 12-bit 200 ksps ADC digitises multiple analog channels. The 64-QFN package supports compact wearable enclosures and the industrial -40 C to +85 C range suits both body-temperature and cold-chain operation.
Recommended
Industrial HMI with Display
Industrial human-machine-interface panels with integrated segment or graphic LCDs can use the PIC24FJ512GL406-I/MR to drive displays directly while handling keypad scanning, sensor conditioning, and Modbus/USB communications on a single chip. The 12-bit ADC, CCP/PWM timers, and CLC (Configurable Logic Cell) peripherals implement custom logic glue without external gates. USB FS device mode is convenient for firmware updates or data logging in factory-floor equipment, and the wide 2.5-3.6 V supply tolerance tolerates 24 V industrial rails after buck regulation.
Recommended
Smart Home Bridge / Hub
Smart-home bridges aggregating Zigbee, BLE, or Wi-Fi telemetry from endpoint devices benefit from the PIC24FJ512GL406-I/MR's USB device mode (tethered Ethernet/Wi-Fi dongle), 512 KB Flash for protocol stacks, and segment-LCD for local status display. The dual-partition Flash is essential for OTA updates that cannot risk bricking the gateway. With Core Independent Peripherals handling DMA-driven sensor polling in the background, the CPU spends most of its time in deep sleep, drawing microamps while still reacting to wake-on-motion events.
Recommended
Portable Data Logger
Portable data loggers for environmental monitoring, cold-chain shipping, or field instrumentation use the PIC24FJ512GL406-I/MR's 32 KB SRAM to buffer samples between SD-card flushes, and the 512 KB Flash to store compressed history before dump over USB. The 12-bit ADC at 200 ksps handles multiple thermocouples or 4-20 mA loops via external signal conditioning. XLP power modes let the logger sleep between samples at nanoamp currents, while the USB device port provides convenient PC connection for data export without an external bridge chip.
Recommended
USB Barcode / RFID Reader
Point-of-sale and inventory terminals can use the PIC24FJ512GL406-I/MR as the main controller with USB device mode to the host PC, plus GPIO and UART to drive a barcode imager or RFID reader module. The segment LCD shows operator prompts and read confirmations without extra driver ICs. With hardware AES and SHA available on related GL4 family parts, secure payment data can be encrypted at the source. The 64-QFN (MR) 9x9 mm footprint fits easily behind the LCD glass of handheld scanners.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ512GL406-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ512GU406-I/MR | PIC24FJ512GB406-I/MR | PIC24FJ256GU406T-I/MR | PIC24FJ256GL406-I/MR | PIC24FJ128GL406-I/MR | PIC24FJ128GB406-I/MR |
|---|---|---|---|---|---|---|---|
| Package | 64-QFN (MR) 9x9 mm | 64-QFN (MR) - same | 64-QFN (MR) - same | 64-QFN (MR) - same | 64-QFN (MR) - same | 64-QFN (MR) - same | 64-QFN (MR) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 512 KB Flash | 512 KB Flash (same) | 512 KB Flash (same) | 256 KB Flash (-50%) | 256 KB Flash (-50%) | 128 KB Flash (-75%) | 128 KB Flash (-75%) |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| LCD Controller | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) |
| Crypto (AES/SHA) | No | No | Yes (AES/SHA) | No | No | No | Yes (AES/SHA) |
| Operating Voltage | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V |
Key Differentiators
- Dual-partition 512 KB Flash for OTA (vs PIC24FJ256GL406-I/MR)
- No built-in crypto accelerator (vs PIC24FJ512GB406-I/MR)
- Highest-density same-package variant (vs PIC24FJ512GU406-I/MR)
Design Notes
Decouple VDD with a 1 uF X7R ceramic placed within 5 mm of pin 1, plus a 100 nF X7R for high-frequency noise; an additional 4.7 uF bulk capacitor on VDD is recommended for USB VBUS inrush events. AVDD/AVSS require their own ferrite bead or filter plus 100 nF + 1 uF decoupling if the ADC is used - the Microchip AN12 ADC grounding application note recommends separate analog ground pour. Estimated: idle current at 3.3 V/32 MHz is approximately 8 mA; deep sleep with RTC is under 1 uA per the PIC24FJ-GL4 datasheet.
The 64-QFN (MR) 9x9 mm package has an exposed thermal pad (EP) that must be soldered to a contiguous ground plane with thermal vias (6-9 vias in a 3x3 grid) to meet thermal specifications. Route the 32 MHz crystal traces within 5 mm, symmetric length, and guard with a ground ring to prevent jitter from switching noise. Keep USB D+/D- traces as a 90 ohm differential pair of equal length and avoid stubs per USB 2.0 routing guidelines.
Do not exceed absolute maximum VDD of 3.6 V - the PIC24FJ-GL4 family is NOT 5 V tolerant on any pin; mix of 5 V peripherals requires level shifters. When implementing dual-partition OTA, ensure the bootloader in the fixed partition correctly toggles the FBTBLIM register and verifies image signatures before swap. Programming pins PGED1/PGEC1 must be accessible for in-circuit serial programming (ICSP) on the production board - place a 2x3 header or test-pad cluster.
Compliance Information
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - choose automotive-grade PIC variants for automotive use. Halogen-free status not explicitly stated; default unknown.